% method of class @parameter
% 
% (c) 2003, University of Cambridge
% Stefan Bleeck (stefan@bleeck.de)
% http://www.mrc-cbu.cam.ac.uk/cnbh/aimmanual/tools/parameter
% $Date: 2004/07/26$

function data=getuserdata(param,text,inbox)
% the whole struct can have an user entry and every part of the structure
% as well. These can be used by the user for example for the 'other...'
% radiobutton

if nargin <2
    data=param.userdata;
else
    nr=getentrynumberbytext(param,text,inbox);
    if nr>0
        %     cont=param.entries;
        %     nrent=length(cont);
        %     for i=1:nrent
        %         if strcmp(cont{i}.text,text) && strcmp(cont{i}.belongtobox,inbox)
        if isfield(data.cont{nr},'userdata')
            data=cont{nr}.userdata;
        else
            data=[];
        end
        return
    else
        data='error';
        disp('error in getuserdata: text not found');
    end
end